#51751B#51751B

#51751B is a mid, vivid yellow-green. Relative luminance 0.146; OKLCH L 51.7% C 0.123 H 129.3°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#51751B
RGB	rgb(81, 117, 27)
HSL	hsl(84, 63%, 28%)
HSV	hsv(84, 77%, 46%)
CMYK	cmyk(30.8%, 0%, 76.9%, 54.1%)
CIE-LAB	lab(45.01, -27.32, 42.71)
CIE-LCH	lch(45.01, 50.70, 122.61°)
OKLab	oklab(51.67% -0.0779 0.0953)
OKLCH	oklch(51.67% 0.123 129.3)
XYZ	xyz(9.9524, 14.5508, 3.3209)
Luminance	0.1455 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51751B #3F1B75

analogous

#756C1B #51751B #24751B

triadic

#51751B #1B5175 #751B51

tetradic

#51751B #1B756C #3F1B75 #751B24

square

#51751B #1B756C #3F1B75 #751B24

split-complementary

#51751B #1B2475 #6C1B75

monochromatic

#111906 #2F4310 #51751B #73A726 #94D139

Accessibility & contrast

On white

5.37

#51751B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#51751B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51751B

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51751B	#FFFFFF	#000000	##FFFFFF
##51751B	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B6C09

Deuteranopia (green-blind)

#766A24

Tritanopia (blue-blind)

#547064

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #51751b;
/* rgb */ color: rgb(81, 117, 27);
/* oklch */ color: oklch(51.7% 0.123 129.3);

Tailwind

colors: {
  custom: {
    50: '#859d5e',
    500: '#51751b',
    950: '#000000',
  },
}

SCSS

$custom: #51751b;
$custom-light: #859d5e;
$custom-dark: #000000;

JSON

{
  "hex": "#51751b",
  "rgb": {
    "r": 81,
    "g": 117,
    "b": 27
  },
  "hsl": {
    "h": 84,
    "s": 62.5,
    "l": 28.235
  },
  "oklch": {
    "l": 0.51674,
    "c": 0.12312,
    "h": 129.3
  },
  "luminance": 0.14551
}

Semantic roles & 50–950 ramp

primary

#51751B

secondary

#6C42A9

accent

#42E684

background

#F8F9F5

surface

#F0F2E9

border

#CBCCC5

text

#0B0E05

muted

#7C7E79

Preview Lab

Preview with #51751B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →